Content page
From [Institution name]
| Property | Requirement | Result | |
|---|---|---|---|
| Tensile strength (MPa): | machine direction | Min. 12 | 25 |
| transverse direction | Min. 8 | 22 | |
| Elongation (%): | machine direction | 225 | 711 |
| transverse direction | 350 | 658 | |
| Water vapour permeance (ng/(Pa·s·m2)) | Max. 15 | 0.61 | |
| Impact strength (g) | Min. 300 | 2 600 | |
| Outdoor weathering resistance | Retain minimum 50% of tensile elongation strength after exposure to accelerated weathering | Pass | |
| Assembly | Rn Concentration in Dosing Compartment (Bq/m3) | Rn Concentration in Receiving Compartment (Bq/m3) | Result |
|---|---|---|---|
| Floor assembly with 6 mil poly | 5 192 | 342 | The test assembly with the RadonBlock™ and butyl joint tape demonstrated lower permeability to Rn compared to the floor assemblies with the 6 mil poly or the 20 mil poly membranes with conventional sheathing joint tape |
| Floor assembly with 20 mil poly | 2 260 | 384 | |
| Floor assembly with "RadonBlock™" | 3 362 | 124 |
| Assembly | Flow Rate Through Exhaust Fan (L/s) | Pressure Under Concrete Slab (Pa) | Pressure Under Membrane (Pa) | Pressure in Dosing Compartment (Pa) | Pressure in Receiving Compartment (Pa) | Result |
|---|---|---|---|---|---|---|
| Floor assembly with 6 mil poly | 26.6 | −1.8 | −3.1 | −30.0 | −0.9 | "RadonBlock™" 6 mil poly and 20 mil poly membranes produced comparable results during the sub-slab pressure communication tests |
| Floor assembly with 20 mil poly | 25.2 | −3.0 | −3.0 | −29.4 | −4.4 | |
| Floor assembly with "RadonBlock™" | 28.9 | −0.6 | −3.1 | −29.8 | −2.3 |